How to remove the comma before and after php

Today, the editor will share with you the relevant knowledge points about how php removes the comma before and after. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

The method of removing the comma before and after: 1, use trim () to remove the comma on both sides of the string at one time, the syntax "trim ($str,") "; 2, use ltrim () to remove the comma at the beginning of the string, and rtrim () to remove the comma at the end, the syntax" ltrim (rtrim ($str, "),", ")".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Two methods of removing commas before and after php

Use trim ()

Use ltrim () + rtrim ()

1. Use the trim () function

2. Use the ltrim () + rtrim () function

The ltrim () function removes commas from the beginning of a string

The rtrim () function removes the comma at the end of a string

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